Fan Casting Hollywood Voodoo in Sort by Tropes

This is a form of magic in either Caribbean or Louisianan flavors. Many practitioners call themselves priests or priestesses, and they almost always do have magical powers, regardless of whether or not the supernatural exists or is even mentioned elsewhere in The 'Verse. Sympathetic Voodoo Dolls (i.e., what you do to them appears on the person they represent) are a classic trick, as is making zombies. Other practitioners simply use tarot cards or other divination tools and they always work, even if they have to rewrite reality to do it. Shrunken Heads may also be present. What you don't see in the depiction of Hollywood Voodoo is anything resembling actual religious practice.